Enter "7873155" (North American version) for an England-based map with a lot of bridges.

Enter "90210" (North American version) for a map with a few hour glasses and some small and large islands.

Enter "smashsumfruit" (North American version) for a tiny island with all the worms. As you start it, all worms will be destroyed by a big explosion and the result will be a tie.

Enter "spire" (North American version) for a moderately sized low altitude map with two blimps. Both blimps are held with steel rope.

Enter "steller" (North American version) for a horror-based map that is quite small and very explosive.

Enter "slipknot" (North American version) for a pirate-based map with an airship.

Enter "sugarcult" (North American version) for a big winter wonderland.

Enter "finalfantasy" (North American version) for a small winter wonderland.

Enter "jackassthemovie" (North American version) for a level with a small amount of land with ghosts at night.

Enter "marijuana" (North American version) for a massive island map.

Enter "doggystyle" (North American version) for a lunar-based map with a spaceship and giant laser gun.

Enter "bigfoot" (North American version) a level with a huge hollow pyramid shaped island, and two smaller islands.

Enter "Jamie Finegan" (North American version) for a level with a massive island.

Set the theme to "War", then enter "bangbang" (North American version) for a map with a blimp held up by a metal wire and a few large islands.

Set the theme to "Arctic", then enter "Bigape" (North American version) for a landscape with two frozen submarines, two ice slides and several ice bridges.

Set the theme to "England", and then enter "igotworms" (North American version) for a landscape with a bridge leading to a house on a very steep cliff.

Enter "257462320" or 194915571" (European version) for a very small map that only contains a little bit ground and a tiny bridge.

Enter "1585104494" (European version) for a very high altitude map.

Enter "241780260" Worms3D (European version) for a very long map.

Enter "221350867" (European version) for a map with four consecutive submarines.

Voice option

On the campaign level where you have to fix the computer monitor, make some room for yourself by killing the enemies, or you can do the code as it is, although you are very likely to get killed. Jump on the keys on the keyboard and spell "TEAM17" (no spaces). You will get a message at the top of the screen stating that you unlocked a hidden Easter Egg. The secret is a new voice option for teams.

In the Grave Danger mission (where you must blow open the graves with grenades), behind one of the houses is a very small circle-shaped grave. There is steam or smoke coming out of the grave, just like the big ones. Drop a grenade on top of the grave, jump down into the grave, and you will get a message that you have found an Easter Egg. The voice that you unlocked is called "Horror".

Play the Nobody Rides For Free mission, where you need to collect the three boxes of land mines. Play for awhile and a fourth box will appear where you started the level. When you collect it, you will get a message that you have found an Easter Egg. The voice that you unlocked is called "Grandpa".

Teleporting

In levels where there are objects floating in the air, if you teleport onto them sideways, there is a chance that you will actually teleport inside the object. This is especially true for the green air ships.

Level generator

Not only can you type in numbers to generate levels, but you can also type in words and it will convert it for you.

Banana Bomb

Successfully complete all three shotgun challenges with any rank to unlock the Banana Bomb.

Earthquake Weapon

Successfully complete all three jetpack challenges with any rank to unlock the Earthquake Weapon.

Mad Cows

Successfully complete all three shotgun challenges with a "Gold medal" rank to unlock the Mad Cows.

Nuclear Bomb

Successfully complete all ten deathmatch challenges to unlock the Nuclear Bomb. If it does not work with all bronzes, try to get silvers and golds.

Super Sheep

Successfully complete all Super Sheep challenges with a "Gold medal" rank to unlock the Super Sheep.

Jet Pack challenge 1

Successfully complete the Rum Deal campaign.

Jet Pack challenge 2

Successfully complete the In Space, No-One Can Hear You Clean campaign.